# algebra

posted by
**Sophie** on
.

At the Wild Thing Zoo, you can rent a motorized cart to tour the grounds for a $4 initial charge and $4 per hour. An equation that represents the total cost y for x hours is y = 4 + 4x. At Safari Zoo, you can rent the same cart for a $3 initial charge and $5 per hour. An equation that represents the total cost y for x hours is y = 3 + 5x. For how many hours is the total charge the same?